'\" te
.\"  Copyright 1989 AT&T  Copyright (c) 1997, Sun Microsystems, Inc.  All Rights Reserved
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.TH FMT 1 "May 9, 1997"
.SH NAME
fmt \- simple text formatters
.SH SYNOPSIS
.LP
.nf
\fBfmt\fR [\fB-cs\fR] [\fB-w\fR \fIwidth\fR | \fB-width\fR] [\fIinputfile\fR]...
.fi

.SH DESCRIPTION
.sp
.LP
\fBfmt\fR is a simple text formatter that fills and joins lines  to produce
output lines of (up to) the number of characters specified in the \fB-w\fR\fI
width\fR option. The default  \fIwidth\fR is \fB72\fR. \fBfmt\fR concatenates
the \fIinputfile\fRs listed as arguments. If none are given, \fBfmt\fR formats
text from the standard input.
.sp
.LP
Blank lines are preserved in the output, as is the spacing between words.
\fBfmt\fR does not fill nor split lines beginning with a `\fB\&.\fR' (dot), for
compatibility with \fBnroff\fR(1). Nor does it fill or split a set of
contiguous non-blank lines which is determined to be a mail header, the first
line of which must begin with "\fBFrom\fR".
.sp
.LP
Indentation is preserved in the output, and input lines with differing
indentation are not joined (unless \fB-c\fR is used).
.sp
.LP
\fBfmt\fR can also be used as an in-line text filter for \fBvi\fR(1). The
\fBvi\fR command:
.sp
.LP
\fB!}fmt\fR
.sp
.LP
reformats the text between the cursor location and the end of the paragraph.
.SH OPTIONS
.sp
.ne 2
.na
\fB\fB-c\fR\fR
.ad
.RS 21n
Crown margin mode. Preserve the indentation of the first two lines within a
paragraph, and align the left margin of each subsequent line with that of the
second line. This is useful for tagged paragraphs.
.RE

.sp
.ne 2
.na
\fB\fB-s\fR\fR
.ad
.RS 21n
Split lines only. Do not join short lines to form longer ones. This prevents
sample lines of code, and other such formatted text, from being unduly
combined.
.RE

.sp
.ne 2
.na
\fB\fB-w\fR\fI width\fR | \fB-\fR\fIwidth\fR\fR
.ad
.RS 21n
Fill output lines to up to  \fIwidth\fR columns.
.RE

.SH OPERANDS
.sp
.ne 2
.na
\fB\fIinputfile\fR\fR
.ad
.RS 13n
Input file.
.RE

.SH ENVIRONMENT VARIABLES
.sp
.LP
See \fBenviron\fR(7) for a description of the \fBLC_CTYPE\fR environment
variable that affects the execution of \fBfmt\fR.
.SH SEE ALSO
.sp
.LP
.BR nroff (1),
.BR vi (1),
.BR attributes (7),
.BR environ (7)
.SH NOTES
.sp
.LP
The \fB-\fR\fIwidth\fR option is acceptable for \fBBSD\fR compatibility, but it
may go away in future releases.
